Package Exports
- @stdlib/math-base-assert-is-odd
- @stdlib/math-base-assert-is-odd/dist
- @stdlib/math-base-assert-is-odd/dist/index.js
- @stdlib/math-base-assert-is-odd/lib/index.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/math-base-assert-is-odd) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
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isOdd
Test if a finite double-precision floating-point number is an odd number.
Installation
npm install @stdlib/math-base-assert-is-odd
Usage
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
isOdd( x )
Tests if a finite double-precision floating-point number is an odd number.
var bool = isOdd( 5.0 );
// returns true
bool = isOdd( -2.0 );
// returns false
bool = isOdd( 0.0 );
// returns false
bool = isOdd( NaN );
// returns false
Notes
The function assumes a finite
number
. If provided positive or negativeinfinity
, the function will returntrue
, when, in fact, the result is undefined. Ifx
can beinfinite
, wrap the implementation as follows:function check( x ) { return ( x < Infinity && x > -Infinity && isOdd( x ) ); } var bool = check( Infinity ); // returns false bool = check( -Infinity ); // returns false
Examples
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
var bool;
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu()*100.0 );
bool = isOdd( x );
console.log( '%d is %s', x, ( bool ) ? 'odd' : 'not odd' );
}
C APIs
Usage
#include "stdlib/math/base/assert/is_odd.h"
stdlib_base_is_odd( x )
Tests if a finite double-precision floating-point number is an odd number.
#include <stdbool.h>
bool out = stdlib_base_is_odd( 1.0 );
// returns true
out = stdlib_base_is_odd( 4.0 );
// returns false
The function accepts the following arguments:
- x:
[in] double
input value.
bool stdlib_base_is_odd( const double x );
Examples
#include "stdlib/math/base/assert/is_odd.h"
#include <stdio.h>
#include <stdbool.h>
int main( void ) {
const double x[] = { 5.0, -5.0, 3.14, -3.14, 0.0, 0.0/0.0 };
bool b;
int i;
for ( i = 0; i < 6; i++ ) {
b = stdlib_base_is_odd( x[ i ] );
printf( "Value: %lf. Is Odd? %s.\n", x[ i ], ( b ) ? "True" : "False" );
}
}
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.